# SDR DALA1100989855

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 4, 2010
- Submitted: January 7, 2011
- Operation: Air carrier
- Aircraft: N764NC
- Make and model: Doug DC-9-51
- Registry model: [Doug DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (OpenAirDocs)
- Aircraft serial: 47717
- Aircraft time: 77,185 hours, 77,042 cycles
- Engine: Pwa JT8D17
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Doubler
- Condition: Cracked
- Location: Bs 256
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA1100989855

## Discrepancy

MAIN PASSENGER CABIN RT STA 256, WINDOW DOUBLER FWD TOPCORNER CRACK BELOW FASTENER.  CUTOUT DAMAGED AREA AND NDT VERIFIED DAMAGE REMOVED IAW NDT SPM 06-10-01. FABRICATED AND INSTALLED REPAIR DOUBLER IAW SRM 53-05.

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